Acute calcific tendinitis of longus colli: An uncommon cause of acute neck pain

Abstract

Acute calcific tendinitis of the longus colli muscle is an inflammatory condition associated with calcifications in longus colli muscle fibers which can present as acute neck pain. We present a case of a patient presenting with acute neck pain. MRI showed retropharyngeal effusion and edema of the left side longus colli muscle. CT showed amorphous calcifications in prevertebral region at C2 level which is a characteristic finding. Effusion in left lateral atlantoaxial joint is an uncommon associated finding in this condition which was seen in this case. It is important to recognize imaging features to prevent unnecessary investigations and surgical intervention.